NO157236C - SONAR. - Google Patents

SONAR.

Info

Publication number
NO157236C
NO157236C NO822836A NO822836A NO157236C NO 157236 C NO157236 C NO 157236C NO 822836 A NO822836 A NO 822836A NO 822836 A NO822836 A NO 822836A NO 157236 C NO157236 C NO 157236C
Authority
NO
Norway
Prior art keywords
sonar
Prior art date
Application number
NO822836A
Other languages
Norwegian (no)
Other versions
NO822836L (en
NO157236B (en
Inventor
Hans Drenkelfort
Original Assignee
Honeywell Elac Nautik Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Elac Nautik Gmbh filed Critical Honeywell Elac Nautik Gmbh
Publication of NO822836L publication Critical patent/NO822836L/en
Publication of NO157236B publication Critical patent/NO157236B/en
Publication of NO157236C publication Critical patent/NO157236C/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3073—Circuits generating control signals when no carrier is present, or in SSB, CW or pulse receivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/529—Gain of receiver varied automatically during pulse-recurrence period

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
NO822836A 1981-08-21 1982-08-20 SONAR. NO157236C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3133080A DE3133080C2 (en) 1981-08-21 1981-08-21 Circuit arrangement for echo sounders

Publications (3)

Publication Number Publication Date
NO822836L NO822836L (en) 1983-02-22
NO157236B NO157236B (en) 1987-11-02
NO157236C true NO157236C (en) 1988-02-10

Family

ID=6139786

Family Applications (1)

Application Number Title Priority Date Filing Date
NO822836A NO157236C (en) 1981-08-21 1982-08-20 SONAR.

Country Status (5)

Country Link
US (1) US4504931A (en)
CA (1) CA1210129A (en)
DE (1) DE3133080C2 (en)
GB (1) GB2104220B (en)
NO (1) NO157236C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834158A1 (en) * 1988-10-07 1990-04-12 E T R Gmbh Ultrasound sensor system having a regulated amplifier and sectors whose attenuation is limited in a defined manner
CN100342246C (en) * 2004-12-17 2007-10-10 中国科学院声学研究所 Digitized stratum echo signal simulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275919B (en) * 1964-01-23 1968-08-22 Electroacustic Gmbh Method and device for the different echo display of different or multi-layered objects
DE1265002B (en) * 1964-06-26 1968-03-28 Electroacustic Gmbh Echo sounder
DE1516629B2 (en) * 1965-11-29 1970-10-29 Electroacustic Gmbh, 2300 Kiel Method and device for recording two closely spaced submarine hall signals on current-sensitive paper
US4198702A (en) * 1978-04-14 1980-04-15 E G and G, Inc. Time varying gain amplifier for side scan sonar applications
US4308601A (en) * 1980-06-27 1981-12-29 David R. Plotnik Echo ranging apparatus and method

Also Published As

Publication number Publication date
GB2104220A (en) 1983-03-02
DE3133080C2 (en) 1983-05-26
DE3133080A1 (en) 1983-03-10
US4504931A (en) 1985-03-12
CA1210129A (en) 1986-08-19
NO822836L (en) 1983-02-22
NO157236B (en) 1987-11-02
GB2104220B (en) 1985-02-27

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